/* 
 * Frame from http://www.w3school.com.cn/tiy/t.asp?f=csse_float6
 * Color #0c4b52 from http://fortysevenmedia.com
 * font-size in body is 62.5% because the default size is 16px, so that the inherited unit will be 16px * 62.5% = 10px
 */

div.body {width:100%; margin:0px; border:1px solid gray; line-height:150%; font-size:62.5%}
div.header, div.footer {padding:0.5em; color:white; background-color:#0c4b52; clear:left; }
h1.header {padding:0; margin:0; }
div.navigator {float:left; width:160px; margin:0; padding:1em; font-size:1.5em; line-height:150%}
div.content {margin-left:190px; border-left:1px solid gray; padding:1em;}